Respiration is a series of reactions in which energy is released from glucose glucose: A simple sugar made by the body from food, which is used by cells to make energy in respiration. Aerobic respiration is the form of respiration which uses oxygen. It can be summarised by this equation:
perturbation in Science. A small change in a physical system, most often in a physical system at equilibrium that is disturbed from the outside. Variation in a designated orbit, as of a planet, that results from the influence of one or more external bodies.
Perturbation is an anxiety or disturbance, or is a cause of disturbance, or a from what is normal, especially when the deviation is caused by an outside influence. 1  When you are feeling anxious about something you are required to do but don't like do, this is an example ofperturbation.